CN109567578B - Boiling control method and electric pressure cooker using same - Google Patents
Boiling control method and electric pressure cooker using same Download PDFInfo
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- CN109567578B CN109567578B CN201810943158.0A CN201810943158A CN109567578B CN 109567578 B CN109567578 B CN 109567578B CN 201810943158 A CN201810943158 A CN 201810943158A CN 109567578 B CN109567578 B CN 109567578B
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- 238000009835 boiling Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000010411 cooking Methods 0.000 claims abstract description 104
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 4
- 235000013305 food Nutrition 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 4
- 235000015097 nutrients Nutrition 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
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Abstract
After the cooking cavity begins to exhaust outwards, the heating is continuously carried out with second power, so that the pressure in the cooking cavity is increased, and the external exhaust volume is gradually increased; when the pressure in the cooking cavity is maintained at the first pressure, the cooking cavity is heated at a third power lower than the second power, so that the steam generation amount is reduced, the pressure in the cooking cavity is gradually reduced, and the external exhaust amount is gradually reduced. The boiling control method can realize the effect of continuous boiling of food in the cooking cavity, and does not need external mechanisms such as an electromagnetic valve and the like to participate in the exhaust work.
Description
Technical Field
The application relates to a boiling control method and an electric pressure cooker using the same.
Background
When the electric pressure cooker cooks, the cooking cavity is of a closed structure, steam is generated in the cooking cavity after heating to be pressed upwards, when the pressure reaches a preset pressure, the heating element stops heating, and at the moment, the boiling of food in the cooking cavity is also stopped. But the food in the cooking cavity can be fully rolled only by full boiling, which is more beneficial to fully releasing nutrient substances and ensuring that the food is more nutritious. In order to achieve the effect of continuous boiling, the exhaust channel needs to be opened through a mechanical device, so that the cooking cavity exhausts air outwards, the pressure in the cooking cavity is reduced, the heating element works again after the pressure is reduced, food in the cooking cavity keeps boiling, and the pressure and boiling in the cooking cavity can be maintained through certain heating power.
The top of the exhaust passage is usually provided with a pressure limiting valve for blocking the exhaust port, and the common way for opening the exhaust passage is to push the pressure limiting valve to move through a solenoid valve so as to open the exhaust port to exhaust the air outwards. However, this method of controlling the exhaust gas by the solenoid valve has the following disadvantages: 1. the current of a working coil of the electromagnetic valve is large, and the electromagnetic valve is easy to damage due to overhigh temperature after long-time work; 2. the electromagnetic valve pushes the pressure limiting valve to move, if the displacement is obvious, the displacement is large, and sudden boiling and soup overflow in the cooking cavity are easily caused; 3. the pressure in the cooking cavity is easy to be suddenly high and suddenly low due to the fact that the electromagnetic valve pushes the pressure limiting valve to exhaust and boil, and constant control of heating power is not facilitated.
There is a need for improvements to the above-described methods.
Disclosure of Invention
The application provides a safe and effective boiling control method and an electric pressure cooker using the same.
Specifically, the method is realized through the following technical scheme: after the cooking cavity starts to exhaust outwards, the cooking cavity is heated continuously with second power, so that the pressure in the cooking cavity is increased, and the external exhaust volume is gradually increased; when the pressure in the cooking cavity is maintained at the first pressure, the cooking cavity is heated at a third power lower than the second power, so that the steam generation amount is reduced, the pressure in the cooking cavity is gradually reduced, and the external exhaust amount is gradually reduced. The boiling control method can realize the effect of continuous boiling of food in the cooking cavity, and does not need external mechanisms such as an electromagnetic valve and the like to participate in the exhaust work.
According to one embodiment of the present application, the second power is 900W-1100W.
According to an embodiment of the application, the third power is 500W-900W.
According to one embodiment of the application, before the cooking cavity starts to exhaust outwards, when the pressure in the cooking cavity rises to exceed the pressure limiting pressure of the pressure limiting valve by heating with the first power, the pressure limiting valve is jacked up by steam, and the cooking cavity starts to exhaust outwards.
According to an embodiment of the application, the first power is greater than the second power.
According to one embodiment of the application, the pressure limiting valve has a pressure limiting pressure of 70KP to 90 KP.
According to one embodiment of the present application, when the pressure in the cooking cavity is maintained at the second pressure, the heating is performed by the second power, the steam generation amount is larger than the exhaust amount, the pressure in the cooking cavity rises, and when the pressure in the cooking cavity is maintained at the first pressure, the heating is performed by the third power until the pressure in the cooking cavity is maintained at the second pressure, so that the heating is performed in a cyclic manner.
According to an embodiment of the present application, in the process of the pressure rise in the cooking cavity, the gap of the pressure limiting valve which is jacked up along with the pressure rise in the cooking cavity is also increased, the outward air displacement is increased, and when the outward air displacement and the steam generation amount in the cooking cavity reach a balance, the pressure in the cooking cavity is maintained at the first pressure.
According to an embodiment of the present application, after the second heating power is changed into the third heating power, because of the reduction of the heating power, the steam generation amount in the cooking cavity is reduced, the external exhaust amount is greater than the steam amount, the pressure in the cooking cavity is gradually reduced, the gap of the pressure limiting valve which is jacked up along with the reduction of the pressure in the cooking cavity is also reduced, the external exhaust amount is also gradually reduced, and when the external exhaust amount and the steam generation amount reach the balance again, the pressure in the cooking cavity is maintained at the second pressure.
The application also provides another technical scheme, and the electric pressure cooker comprises a circuit board, wherein the circuit board is provided with a program capable of executing the boiling control method. The electric pressure cooker can realize the effect of continuous boiling of food in the cooking cavity, and does not need external mechanisms such as an electromagnetic valve and the like to participate in the exhaust work.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 shows a flow chart of a boiling control method using the present application.
Fig. 2 shows a pressure versus power curve for the boiling control method of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices, systems, apparatuses, and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The application relates to a boiling control method and an electric pressure cooker using the same. The electric pressure cooker comprises a cooker cover and a cooker body, wherein a cooking cavity is formed between the cooker cover and the cooker body, and a heating device is arranged at the bottom of the cooker body and used for heating the cooking cavity. The cooker cover is also provided with an exhaust passage and a pressure limiting valve, the exhaust passage is communicated with the cooking cavity, the pressure limiting valve seals an exhaust port of the exhaust pipe, and when the pressure in the cooking cavity reaches a certain preset value, the pressure limiting valve can be jacked up by gas in the cooking cavity, the exhaust port is opened to exhaust the gas outwards, and the pressure in the cooking cavity is reduced. The electric pressure cooker is of a conventional structure.
The boiling control method utilizes the relation between the heating power and the pressure limiting pressure of the pressure limiting valve to coordinate, adjusts the heating power according to different heating stages, can keep boiling in the cooking cavity, and is more beneficial to nutrient release of food. Referring to fig. 1, a specific control method of the present application includes the following steps:
step 1, heating with first power to continuously raise the pressure in the cooking cavity, and when the pressure rises to exceed the pressure limiting pressure of the pressure limiting valve, the pressure limiting valve is jacked up by steam, and the cooking cavity begins to exhaust outwards. At this time, the clearance for jacking up the pressure limiting valve is small, and the observed exhaust amount is not very large.
And 2, continuing heating with second power, continuously generating steam in the cooking cavity along with the continuous heating, continuously increasing the pressure in the cooking cavity, enlarging the gap of the pressure limiting valve jacked up along with the increase of the pressure in the cooking cavity, and increasing the outward exhaust amount. After a certain time (40S-120S), when the external air displacement and the steam generation amount in the cooking cavity reach the balance, the maximum air displacement is obtained, and the boiling amount in the cooking cavity reaches the maximum. The pressure within the cooking chamber is maintained at a first pressure.
And 3, continuing to reduce the heating power to a third heating power. Steam is continuously generated in the cooking cavity, but because of the reduction of the heating power, the amount of the steam generated in the cooking cavity is reduced, the outward exhaust amount is larger than the amount of the steam, the pressure in the cooking cavity is gradually reduced, the gap of the pressure limiting valve which is jacked up along with the reduction of the pressure in the cooking cavity is also reduced, and then the outward exhaust amount of the cooking cavity is also gradually reduced. After a certain time (30S-60S), when the minimum air displacement is reduced, the external air displacement and the steam generation amount in the cooking cavity reach balance again, and the boiling amount in the cooking cavity is minimum. The pressure within the cooking chamber is maintained at a second pressure.
4. And (3) repeating the step (2) and the step (3) in sequence, and performing cyclic control in a mode of heating with second power and alternately heating with third power, wherein the exhaust gas volume is cycled from small to large and then from large to small. The cooking cavity achieves the effect of full boiling along with the continuous proceeding of air exhaust and heating, so that the nutrition of food is fully released, and the nutrition of food is improved.
Wherein the first power is 1000W-1500W; the second power is less than the first power, and the second power is 900W-1100W; the third heating power is 500W-900W. The heating mode in the boiling process adopts a continuous heating mode.
The pressure limiting pressure of the pressure limiting valve is 70KP-90KP, preferably 85 KP.
The time for maintaining the pressure in the cooking chamber at the first pressure can be controlled between 10S and 30S.
The time for maintaining the pressure in the cooking chamber at the second pressure can be controlled between 10S and 30S.
In fact, the time required by each process actually varies according to the power deviation, the water amount, the distance between the pan and the wire coil, and the like of each product. The above data are for reference only.
According to the boiling control method, the pressure in the cooking cavity is controlled to continuously rise and exceed the pressure limiting pressure of the pressure limiting valve (by adopting the first heating power), the pressure limiting valve is jacked by steam to automatically exhaust, after heating is continuously carried out (by adopting the second heating power), along with the slow rise of the pressure in the cooking cavity, the exhaust of the pressure limiting valve is changed from small to large, the exhaust is changed from slow to fast, the exhaust is gradually changed to the maximum, and the steam is released and balanced. And then the heating power is reduced by controlling (adopting a third heating power), so that the steam quantity generated in the cooking cavity is reduced, and the exhaust is changed from big to small and from fast to slow. And then increasing the heating power (adopting a second heating power), repeating the previous steps, and exhausting gas in a circulating mode of firstly reducing the gas from large to small and then reducing the gas from small to large, so that the food in the cooking cavity is continuously boiled.
Referring to fig. 2, the following description will be made with reference to specific examples, and fig. 2 is a graph showing a pressure versus power curve during boiling, which includes the following steps:
a. the cooking pot is heated at 1300W of first power, the top of the pot cover is provided with a temperature controller, and the pressure in the cooking cavity is monitored by detecting the temperature in real time according to the corresponding relation between the temperature and the pressure.
b. When the pressure in the cooking cavity is detected to reach 85KP, the heating is changed into the second power of 1000W. The pressure continuously rises, the external exhaust gas quantity continuously increases, the pressure in the cooker reaches 115Kpa after about 40S, and when the external exhaust gas quantity and the steam generation quantity in the cooking cavity reach the balance, the external exhaust gas quantity is the maximum exhaust gas quantity, and the boiling quantity in the cooking cavity reaches the maximum.
c. When the pressure is detected to be maintained at 115Kpa for a certain time (about 14S), the heating is changed to the third power of 700W, because the power is reduced, the external exhaust amount is larger than the steam generation amount in the cooking cavity, the pressure is reduced, the external exhaust amount is continuously reduced, the pressure in the cooker is reduced to 85KP after about 32S, and the external exhaust amount and the steam generation amount in the cooking cavity reach the balance again, and the minimum exhaust amount is obtained. The pressure was detected to be maintained at 85Kpa for a certain time (about 10S), and the second power 1000W heating was changed.
And c, circularly executing the steps b and c, controlling the pressure between 85KP and 15KP, controlling the exhaust amount to be changed between the minimum exhaust amount and the maximum exhaust amount all the time, keeping continuous heating, keeping the cooking cavity in a full boiling state all the time, and fully releasing the nutrient components of the food.
The electric pressure cooker comprises a circuit board, wherein a program capable of executing the boiling control method is arranged on the circuit board.
The boiling control method and the electric pressure cooker can achieve the effect that food in the cooking cavity is continuously boiled. And no external mechanism such as an electromagnetic valve is needed to participate in the exhaust work.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (9)
1. A boiling control method, characterized by: before the cooking cavity starts to exhaust outwards, heating with first power, and when the pressure in the cooking cavity rises to exceed the pressure limiting pressure of the pressure limiting valve, the pressure limiting valve starts to be jacked up by steam, and the cooking cavity starts to exhaust outwards; after the cooking cavity starts to exhaust outwards, the cooking cavity is heated continuously with second power, so that the pressure in the cooking cavity rises, the gap of the pressure limiting valve jacked up along with the increase of the pressure in the cooking cavity also becomes larger, and the external exhaust volume gradually increases; when the pressure in the cooking cavity is maintained at the first pressure, the cooking cavity is heated by a third power lower than the second power, so that the steam generation amount is reduced, the pressure in the cooking cavity is gradually reduced, the gap of the pressure limiting valve jacked up along with the reduction of the pressure in the cooking cavity is also reduced, and the external exhaust amount is gradually reduced.
2. A boiling control method as claimed in claim 1, wherein: the second power is 900W-1100W.
3. A boiling control method as claimed in claim 2, wherein: the third power is 500W-900W.
4. A boiling control method as claimed in claim 1, wherein: the first power is greater than the second power.
5. The boiling control method as claimed in claim 4, wherein: the pressure limiting pressure of the pressure limiting valve is 70KP-90 KP.
6. A boiling control method as claimed in claim 1, wherein: when the pressure in the cooking cavity is maintained at the second pressure, the cooking cavity is heated by the second power, the steam generation amount is larger than the exhaust amount, the pressure in the cooking cavity is increased, and when the pressure in the cooking cavity is maintained at the first pressure, the cooking cavity is heated by the third power until the pressure in the cooking cavity is maintained at the second pressure, so that the cooking cavity is heated in a circulating mode.
7. The boiling control method as claimed in claim 6, wherein: in the process of pressure rise in the cooking cavity, the gap of the pressure limiting valve jacked up along with the pressure rise in the cooking cavity is also increased, the outward air displacement is increased, and when the outward air displacement and the steam generation amount in the cooking cavity reach balance, the pressure in the cooking cavity is maintained at the first pressure.
8. The boiling control method as claimed in claim 7, wherein: after the second heating power is changed into the third heating power, because of the reduction of the heating power, the steam generation amount in the cooking cavity is reduced, the external exhaust amount is larger than the steam amount, the pressure in the cooking cavity is gradually reduced, the gap of the pressure limiting valve which is jacked up along with the reduction of the pressure in the cooking cavity is also reduced, the external exhaust amount is also gradually reduced, and when the external exhaust amount and the steam generation amount reach balance again, the pressure in the cooking cavity is maintained at the second pressure.
9. An electric pressure cooker is characterized in that: comprising a circuit board provided with a program capable of executing the boiling control method of any one of the preceding claims 1 to 8.
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| CN201810943158.0A CN109567578B (en) | 2018-08-17 | 2018-08-17 | Boiling control method and electric pressure cooker using same |
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| CN110419934B (en) * | 2019-07-26 | 2020-10-23 | 珠海格力电器股份有限公司 | Control method of cooking appliance |
| CN110464222A (en) * | 2019-08-29 | 2019-11-19 | 珠海格力电器股份有限公司 | A kind of electric cooker control method, device and electric cooker |
| CN112353229B (en) * | 2020-10-27 | 2022-03-01 | 珠海格力电器股份有限公司 | Cooking equipment, cooking control method and device thereof, and storage medium |
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